EP3797654A1 - Anpassbares kaffeeausgabesystem - Google Patents

Anpassbares kaffeeausgabesystem Download PDF

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Publication number
EP3797654A1
EP3797654A1 EP20196706.4A EP20196706A EP3797654A1 EP 3797654 A1 EP3797654 A1 EP 3797654A1 EP 20196706 A EP20196706 A EP 20196706A EP 3797654 A1 EP3797654 A1 EP 3797654A1
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EP
European Patent Office
Prior art keywords
coffee
cpu
machine
infusion
grinding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20196706.4A
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English (en)
French (fr)
Other versions
EP3797654B1 (de
Inventor
Lauro Fioretti
Pierluigi Maponi
Riccardo Piergallini
Sauro VITTORI
Josephin Giacomini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universita degli Studi di Camerino
Simonelli Group SpA
Original Assignee
Universita degli Studi di Camerino
Simonelli Group SpA
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Publication of EP3797654A1 publication Critical patent/EP3797654A1/de
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Publication of EP3797654B1 publication Critical patent/EP3797654B1/de
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/42—Beverage-making apparatus with incorporated grinding or roasting means for coffee
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/52—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus
    • A47J31/521—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus the electronic control being performed over a network, e.g. by means of a computer or a handheld device
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/52—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus
    • A47J31/525—Alarm-clock-controlled mechanisms for coffee- or tea-making apparatus ; Timers for coffee- or tea-making apparatus; Electronic control devices for coffee- or tea-making apparatus the electronic control being based on monitoring of specific process parameters

Definitions

  • the present invention relates to a customizable coffee dispensing system.
  • catering services such as bars, restaurants and the like, generally comprise a coffee machine used to dispense liquid coffee by means of an infusion of ground coffee.
  • said catering services also comprise a grinding machine to grind coffee beans in such a way to obtain ready-to-use ground coffee.
  • Automatic coffee vendor machines have a control panel that can be used by the consumer to set a very limited number of parameters, such as for example the addition of sugar to the coffee and the strength of the coffee.
  • the Italian patent IT1411701 in the name of the same applicant, discloses a coffee machine with a control system of the infusion temperature.
  • EP3162256 in the name of the same applicant, discloses a coffee dispensing system that comprises a grinding machine and a coffee machine provided with load cells to detect the weight of the ground coffee dispensed in a filter-holder and the weight of the liquid coffee dispensed in a cup.
  • EP3409146 in the name of the same applicant, discloses a coffee machine with a pre-infusion valve controlled with a pulse train by a pulse width modulation (PWM) device.
  • PWM pulse width modulation
  • EP2314188 discloses a coffee dispensing system according to the preamble of claim 1.
  • EP2392239 discloses a configuration method of a coffee machine that involves evaluating an input by a control unit based on comparison of input flavor parameters with a predefined dataset, which comprises a control parameter for controlling components of an automatic coffee machine.
  • the purpose of the present invention is to eliminate the drawbacks of the prior art by disclosing a coffee dispensing system that can be customized according to the customer's requirements.
  • Another purpose of the invention is to provide such a coffee dispensing system that is efficient, simple and easy to use for the consumer and for the operator.
  • Another purpose of the invention is to disclose such a coffee dispensing system that is versatile and suitable for being applied in coffee machines for the catering sector and in automatic coffee vendor machines.
  • the coffee dispensing system of the invention is defined in the independent claim 1.
  • the coffee dispensing system according to the invention is disclosed, which is generally indicated with reference numeral (100).
  • the system (100) comprises a plurality of grinding machines (1) and a coffee machine (2) operatively connected to a CPU (3).
  • a different mix (a1, ... An) of coffee beans suitable for being ground to obtain ground coffee is loaded in each grinding machine (1).
  • the coffee bean mix (a1, ....an) can have different parameters that define the organoleptic characteristics of the mix. Said parameters can be, for instance: robust taste, roast, aroma, etc.
  • a filter holder (4) is suitable for containing a ground coffee dose.
  • the filter holder (4) is suitable for being disposed in each grinding machine (1) in such a way to be filled with ground coffee to form a desired dose of ground coffee.
  • the filter holder (4) is suitable for being disposed in the coffee machine (2) for infusing the ground coffee panel and dispensing liquid coffee in a cup (5).
  • a user interface (6) is operatively connected to the CPU (3) in order to display the information and enter the commands.
  • the grinding machines (1) and the coffee machine (2) can be programmed according to the type of coffee selected by the consumer; more precisely, some parameters of the grinding machines (1) and of the coffee machine (2) can vary according to the type of coffee, as explained in detail hereinafter.
  • the user interface (6) is suitable for sending input parameters (I) selected by the user according to the desired type of coffee to the CPU.
  • the input parameters (I) can be, for example, one or more of the following coffee characteristics: cream, sweetness, acidity, aroma, body, aftertaste, smell, etc.
  • the cream can be divided into color, texture and persistence.
  • Aromas can be divided in various types of aromas, such as fermented, fruity, floral, sweet, nutty, spices, roasted, green vegetative, etc.
  • a score can be given for each input parameter (I), for example from 1 to 9.
  • the CPU calculates output parameters (O) to control the grinding machines (1) and the coffee machine (2), in such a way to set certain parameters of the grinding machines (1) and of the coffee machine (2).
  • the output parameters (O) are:
  • An algorithm (31) calculates the output parameters (O) based on the input parameters (I).
  • Said algorithm (31) was created based on a chemical-physical model of water percolation through a ground coffee panel. Such a percolation model takes into account the variation of chemical compounds (chlorogenic acids, lipids, caffeine, etc.) that are developed in the coffee based on the variation of the output parameters (O) set in the grinding machines and in the coffee machine.
  • the input parameters (I) were defined based on the chemical compounds, taking into account the variation of said chemical compounds.
  • the user interface (6) may comprise a control panel (60).
  • the user informs the operator (bar tender) about the desired type of coffee and the operator enters the input parameters (I) with the control panel (60).
  • the CPU (3) sends information (F) on the selected grinding machines to the control panel (60), in such a way that the operator can display the selected grinding machines and sequentially position the filter-holder (4) only in the selected grinding machines.
  • a preferred ground coffee mix is created in the filter-holder (4) by combining several coffee mixes (a1, .... an) contained in the grinding machines with a different quantity and a different pressing for each mix.
  • the filter-holder (4) can be mounted on a mobile slide (40) that receives information from the CPU (3) on the selected grinding machines in such a way to be sequentially moved to each selected grinding machine and finally to the coffee machine (2).
  • the slide (40) can be operated by actuators.
  • the user interface (6) may comprise a smart device (61) provided to each user/consumer.
  • An app (62) is installed in each smart device (61).
  • the user can set the input parameters (I) in order to select the desired type of coffee directly.
  • the smart device (61) can be connected to the CPU (3) in wireless mode.
  • the app (62) sends the input parameters (I) to the CPU (3) that calculates the output parameters (O) in order to control the coffee dispensing system (100).
  • the app (62) is connected to a cloud (63) on the Internet whereto the CPU (3) is connected.
  • the coffee dispensing system (100) is an automatic coffee vendor machine
  • the grinding machines (1) and the coffee machine (2) are enclosed in a frame structure. Therefore, the mobile slide (40) must be provided in order to move the filter-holder (4) to the various grinding machines and to the coffee machine.
  • the input parameters (I) can be sent by the user to the CPU (3) by means of a user interface (6) that can consist in a control panel (60) of the automatic coffee vendor machine or in the smart device (61) of the user wherein the app (62) is installed.
  • Fig. 3 shows a possible table of the input parameters (I) that can be selected by the user with the app (62) of the smart device or by the operator/user with the control panel (60).
  • Each grinding machine (1) comprises a grinding unit (10) suitable for grinding coffee beans in order to obtain ground coffee.
  • the grinding unit (10) is operated by an electric motor (11) connected to the CPU (3).
  • the grinding machine (1) also comprises a support (12) suitable for receiving and supporting the filter-holder (4).
  • the support (11) is operatively connected to a load cell (13) suitable for detecting the weight of the filter-holder (4) when the filter-holder (49 is positioned on the support (12).
  • the load cell (13) is connected to the CPU (3) that continuously detects the net weight of the ground coffee dispensed in the filter-holder (4), subtracting the tare of the filter-holder from the gross weight of the filter-holder with the ground coffee.
  • the CPU (3) has calculated with the algorithm that the grinding machine (1) that is selected based on its coffee mix is to dispense a certain weight of ground coffee of said specific coffee mix, the CPU presets such a weight value.
  • the load cell (13) measures the weight of the ground coffee and the CPU (3) stops the electric motor (11) of the grinding unit when the weight of the ground coffee reaches the preset value.
  • the grinding machine (1) also comprises a presser (14) suitable for pressing the ground coffee in the filter-holder (4) with a pressure comprised between 0 and 30 Kg.
  • the presser (14) is connected to the CPU (3).
  • a dynamometer (15) is connected to the presser (14) to detect the pressure exerted by the presser.
  • the dynamometer (15) is connected to the CPU (3).
  • the CPU (3) has calculated with the algorithm that the grinding machine (1) selected according to its coffee mix is to press the ground coffee of said specific coffee mix at a certain pressure, the CPU presets such a pressure value.
  • the dynamometer (15) measures the pressure exerted by the presser on the ground coffee and the CPU (3) stops the presser (14) when the measured pressure reaches the preset value.
  • the output parameter of the pressure of the ground coffee is very important because it affects the porosity that affects the final profile of the coffee.
  • the coffee machine (2) comprises a delivery unit (20) suitable for delivering pressurized hot water on a ground coffee panel disposed in the filter-holder (4) inserted in the delivery unit (20).
  • the delivery unit (20) comprises an electrically controlled dispensing valve connected to the CPU (3) in order to enable/disable the delivery of pressurized hot water.
  • the coffee machine (3) comprises a heat exchanger (21) or dedicated boiler provided with a heating element to heat the water that is to be fed to the delivery unit (20).
  • the heating element of the heat exchanger (21) is connected and controlled by the CPU (3).
  • a temperature sensor (22) detects the temperature of the hot water in the heat exchanger (21).
  • the temperature sensor (22) is connected to the CPU (3).
  • the CPU (3) if the CPU (3) has calculated with the algorithm that the infusion water supplied to the delivery unit (20) is to have a given temperature, the CPU will set said temperature value.
  • the temperature sensor (22) measures the temperature of the water in the heat exchanger (21) and the CPU (3) controls the delivery unit (20) to deliver hot water, when the water temperature reaches the preset temperature value.
  • the CPU (3) comprises a PID (Proportional-Integral-Derivative) control system (23) that controls the temperature of the heating element of the heat exchanger.
  • PID Proportional-Integral-Derivative
  • the output parameter (O) of the temperature (T) of the infusion water can follow a temperature profile according to a temperature curve by time unit.
  • the coffee machine (2) also comprises:
  • the pre-infusion valve is an electrically controlled valve.
  • the CPU (3) comprises a signal generator (25) suitable for controlling a shutter of the pre-infusion valve (24).
  • the pre-infusion valve (24) can be of pulsing type, i.e. it may be provided with a shutter that is controlled (open or closed in ON-OFF mode) by means of a pulse train coming from the signal generator (25) that, in such a case, is a pulse generator, such as a PWM (Pulse Width Modulation) device.
  • a pulse train coming from the signal generator (25) that, in such a case, is a pulse generator, such as a PWM (Pulse Width Modulation) device.
  • PWM Pulse Width Modulation
  • the pulse generator (25) can modulate the width of the pulses in such a way to vary the opening and closing frequency of the shutter of the pre-infusion valve (24). When the shutter is open, a pulse of water on the ground coffee contained in the filter-holder is received.
  • the coffee machine (2) has a water system with a pump that pressurizes the water supplied in the pre-infusion valve. Said pressure is approximately 9-11 bar. Instead, the water flow varies according to the quantity of water per time unit that passes in the pre-infusion valve (24). Such a flow can be controlled by the pulses emitted by the signal generator (25).
  • the flow/pressure ratio (T) varies when the duration and the frequency of the pulses vary; in fact, the pre-infusion valve is part of a water circuit with a load loss determined by the ground coffee panel.
  • the flow meter (28) is connected to the CPU (3) in such a way that the CPU (3) controls the pre-infusion valve (24) based on the desired flow/pressure ratio (R).
  • the pre-infusion valve (24) can be of programmable proportional type, namely a two-way valve, comprising a shutter suitable for gradually opening and closing the communication between the two ways of the valve, proportionally to a control signal sent by the signal generator (25).
  • the signal can be an electric voltage signal.
  • the system (100) may comprise a control of the brew rate output parameter (ground coffee weight/liquid coffee weight).
  • the coffee machine (2) comprises a platform (26) disposed under the delivery unit (20) to receive the cup (5) suitable for being filled with liquid coffee.
  • the platform (26) is mobile and operatively connected to a load cell (27) to detect the weight of the cup (5).
  • the load cell (27) is connected to the CPU (3) that continuously detects the net weight of the liquid coffee dispensed in the cup (5), subtracting the tare of the cup from the gross weight of the cup with the liquid coffee measured by the load cell (27).
  • the CPU (3) has stored the weight of the ground coffee in the filter-holder (4) that was measured by the load cells (13) of the grinding machines and the load cell (27) continuously measures the weight of the liquid coffee, the CPU can continuously measure the brew rate (ground coffee weight/liquid coffee weight) and compare it with the preset brew rate (calculated by the algorithm). When the measured brew rate reaches the preset brew rate, the CPU (3) controls the delivery unit in such a way to close the dispensing valve and stop dispensing the liquid coffee.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • General Engineering & Computer Science (AREA)
  • Apparatus For Making Beverages (AREA)
  • Tea And Coffee (AREA)
EP20196706.4A 2019-09-30 2020-09-17 Anpassbares kaffeeausgabesystem Active EP3797654B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102019000017582A IT201900017582A1 (it) 2019-09-30 2019-09-30 Sistema personalizzabile per erogazione di caffe’.

Publications (2)

Publication Number Publication Date
EP3797654A1 true EP3797654A1 (de) 2021-03-31
EP3797654B1 EP3797654B1 (de) 2021-12-22

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EP20196706.4A Active EP3797654B1 (de) 2019-09-30 2020-09-17 Anpassbares kaffeeausgabesystem

Country Status (2)

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EP (1) EP3797654B1 (de)
IT (1) IT201900017582A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022268494A1 (en) 2021-06-23 2022-12-29 Hemro International AG Sensor for a coffee grinder
JP7257065B1 (ja) 2021-11-16 2023-04-13 株式会社大都技研 コーヒーマシンシステム
WO2023177631A3 (en) * 2022-03-14 2024-01-25 TBDx Inc. Automatic single-serving beverage brewing system
CN118266752A (zh) * 2024-05-31 2024-07-02 广东格米莱智能科技有限公司 基于重量流量的咖啡出杯控制方法及系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2279683A1 (de) * 2009-07-31 2011-02-02 René M. Kohli Verfahren zum benutzergesteuerten Herstellen eines insbesondere flüssigen Lebensmittel-Produkts
EP2314188A1 (de) 2009-10-23 2011-04-27 Gruppo Cimbali S.p.A. Vorrichtung und Verfahren zum Nachfüllen der Filterhalter einer Espressokaffeemaschine mit gewählten Mengen gemahlenen Kaffees nach Bedarf
EP2392239A1 (de) 2010-06-02 2011-12-07 Melitta SystemService GmbH & Co., Kommanditgesellschaft Verfahren zur Konfiguration eines Kaffeevollautomaten und Kaffeevollautomat
EP2624733B1 (de) * 2010-10-07 2015-06-10 Nestec S.A. Getränkespender mit auswählbaren getränkesensorparametern
EP3162256A1 (de) 2015-10-30 2017-05-03 Nuova Simonelli S.p.A. Kaffeemaschine und entsprechendes verfahren zur extraktion von kaffee
EP3409146A1 (de) 2017-05-30 2018-12-05 Simonelli Group S.P.A. Kaffeemaschine mit vor-infusionssystem

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2279683A1 (de) * 2009-07-31 2011-02-02 René M. Kohli Verfahren zum benutzergesteuerten Herstellen eines insbesondere flüssigen Lebensmittel-Produkts
EP2314188A1 (de) 2009-10-23 2011-04-27 Gruppo Cimbali S.p.A. Vorrichtung und Verfahren zum Nachfüllen der Filterhalter einer Espressokaffeemaschine mit gewählten Mengen gemahlenen Kaffees nach Bedarf
EP2392239A1 (de) 2010-06-02 2011-12-07 Melitta SystemService GmbH & Co., Kommanditgesellschaft Verfahren zur Konfiguration eines Kaffeevollautomaten und Kaffeevollautomat
EP2624733B1 (de) * 2010-10-07 2015-06-10 Nestec S.A. Getränkespender mit auswählbaren getränkesensorparametern
EP3162256A1 (de) 2015-10-30 2017-05-03 Nuova Simonelli S.p.A. Kaffeemaschine und entsprechendes verfahren zur extraktion von kaffee
EP3409146A1 (de) 2017-05-30 2018-12-05 Simonelli Group S.P.A. Kaffeemaschine mit vor-infusionssystem

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022268494A1 (en) 2021-06-23 2022-12-29 Hemro International AG Sensor for a coffee grinder
JP7257065B1 (ja) 2021-11-16 2023-04-13 株式会社大都技研 コーヒーマシンシステム
JP2023073815A (ja) * 2021-11-16 2023-05-26 株式会社大都技研 コーヒーマシンシステム
WO2023177631A3 (en) * 2022-03-14 2024-01-25 TBDx Inc. Automatic single-serving beverage brewing system
CN118266752A (zh) * 2024-05-31 2024-07-02 广东格米莱智能科技有限公司 基于重量流量的咖啡出杯控制方法及系统

Also Published As

Publication number Publication date
IT201900017582A1 (it) 2021-03-30
EP3797654B1 (de) 2021-12-22

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